To all owners or those familiar with the BTA-1R series of transmitters:
The Power Raise/Lower variable resistor (1R405) is connected to the
motor unit which turns it when switch #1S202 is operated. The
connection between the motor and the rheostat on mine is gone and I
can't seem to find a
Check with davidsarnoff.com they have all the docs for that unit
Brad KB7FQR
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Rick Brashear
Sent: Tuesday, May 23, 2006 11:30 AM
To: AMRadio@mailman.qth.net
Subject: [AMRadio] BTA-1R2
To all owners or those
Thanks Brad, I have an email into them to see if they have the manual.
73,
Rick/K5IZ
uvcm inc. wrote:
Check with davidsarnoff.com they have all the docs for that unit
Brad KB7FQR
Rick,
Its a typical WELL INSULATED flex shaft coupling with the required
size holes. The full 3.1 kv B+ is on the rheostat.
Larry W3LW
At 02:29 PM 5/23/2006, you wrote:
To all owners or those familiar with the BTA-1R series of transmitters:
The Power Raise/Lower variable resistor (1R405)
If you want I can take a close up photo of mine and
Email it to you.
--- Rick Brashear [EMAIL PROTECTED] wrote:
To all owners or those familiar with the BTA-1R
series of transmitters:
The Power Raise/Lower variable resistor (1R405) is
connected to the
motor unit which turns it when
Thanks. Mine has a porcelain coupling isolating the rheostat from the
motor drive shaft, but what concerns me is without some kind of slip
apparatus on the two 1 3/8 hubs that connect the rheostat shaft
coupling to the motor drive shaft coupling it would be possible to do
damage to either the
If you don't mind John I would really appreciate it. I'd hate to mess
this part up as I doubt it would be easy to replace.
Thanks,
Rick/K5IZ
John Wright wrote:
If you want I can take a close up photo of mine and
Email it to you.
--- Rick Brashear [EMAIL PROTECTED] wrote:
: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Rick Brashear
Sent: Tuesday, May 23, 2006 1:57 PM
To: Discussion of AM Radio
Subject: Re: [AMRadio] BTA-1R2
Thanks Brad, I have an email into them to see if they have the manual.
73,
Rick/K5IZ
uvcm inc. wrote:
Check with davidsarnoff.com
Rick,
I will be on the Gray Hair Net on 1945 at 20:30 local time tonite so
I'll go look at mine before that and send you a note.
As I remember they just relied on a stall, no slip.
Larry
At 04:47 PM 5/23/2006, you wrote:
Thanks. Mine has a porcelain coupling isolating the rheostat from
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